What browser do you use? I use Chrome and all I really had to do is: control panel > uninstall program> Ask Toolbar. Then in Chrome change your Homepage and tab settings.

I wish Oracle would stop bundling it with Java, because I know you have to read and click no, but you forget after so many months between updates. It should be a law where you have to have it set to "no I don't want," and you have to click it separately if you want it.